Darkwood - Darkwood created by Acid Wizard Studio offers a wonderful combination of Open World, Action-Adventure and Horror-Survival, RPG and Roguelike aesthetics.
OGame - OGame is an addictive, Massively Multiplayer Online, Real-time Strategy, Space-war, and Money Management Browser-based video game develop by Gameforge AG.
7 Days to Die - 7 Days to Die is a post-apocalyptic survival game, during which players must craft shelters and horde resources in order to survive waves of undead enemies. Read more about 7 Days to Die.
EVE Online - Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.
Dead Frontier - Dead Frontier is among the few zombie based video games that you can obtain in your web browser and for free.
Galaxy on Fire - Galaxy on Fire is a space combat and trading simulation.